package lab02.test20;

import java.util.Scanner;

public class Test {
    public static void main(String[] args) {
        //从键盘输入一行含有数字和字符的字符串
        String result;//a=result
        //从键盘输入数据
        System.out.println("请输入内容：");
        Scanner scanner=new Scanner(System.in);
        result=scanner.next();//scanner=cin
      //  System.out.println(result);
        //仅仅输出字符串中的全部数字字符
        char tmp;
        int i;
        for (i=0;i<result.length()-1;i++){

            tmp=result.charAt(i);
            if(tmp >= '0' && tmp <= '9'){
                System.out.print(tmp);
            }
        }




    }
}
